Milk-bottle and other receptacle.



G. MARTHINSON.

MILK BOTTLE AND OTHER REGEPTAGLE.

APPLIOATION TILED JULY 17, 1908.

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CHARLES nnnrnrusou,

WASHINGTON, DISTRICT OF COLUMBIA.

' mI K-notrrLE AND o'rHEn RECEP TACLE.

To all whom it may concern."

Be it known that I, CHAnLus MAn'rHINsoN, of Washington, in theDistrict of Columbia, have invented a certain new and useful Improvement in Milk- Bottles and other Re-- ccptacles, and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the. accompanying drawings, in which I v Figure l is a perspective view of a paper milk bottle embodying my invention; F ig. 2 is a vertical section of the same; and, Fig. 3 is a detail section on a large scale of a portion of the bottom.

In the manufacture of milk bottles or other receptacles from paper, it has been diflicult to 'attachthe bottoms thereof to th ,bottle or receptacle as firmiy or securely,

and with as tight a joint as is required in a bottle or receptacle that is intended to hold liquids or finely powdered 'anaterials, and

' the object of my invention is to overcome this difliculty, and ceptacle having its required firmness, tight joint, and do this with the economy that is required in the manufacture of such articles, and to this end my in'ventioncon sistsin a paper receptacle, as far as the structure of the bottom orend portion there'- of is concerned, substantially as hereinafter to produce a paper rebottoin' secured with the specified and claimed.

For the purpose of illustrating my inven-- tion, I have shown in the drawings a milk bottle, but it is to be understood that i do not limit myself to the employment of the invention in connection with milk bottles, since bottles or receptacles for holding liquid and powdered or other materials may be made in accordance with my invention.

The bottle 10, shown in the drawings is cylindrical or of tubular form, made of paper wound or wrapped upon "a mandrel, to produce side walls of the required thickness, in which respect the bottle is of ordinary construction. The bottom 11 is of inverted cup form, that is to say, it consists of a circular or disk-like portion, having at its outer edge a downwardly projecting circumferential flange 12, whose external diameter is that of the internal diameter of the bottle. The end portion of the tube, which forms the body of the bottle, is folded or doubled upon itself at 13, and is then folded inward and with the necessary Specification of Letters Pateut mg tool.

tendency and bottom flange,

Patented Oct. 5,: 1999.

, Application 'fileii July 17, 1908. swarm). 44 4;011.

shown in Fig. 3, which ribsor grooves are formed by placing the bottle in a suitable die so as to support it on the outside in the plane in which the ribs and grooves lie, and then subjecting the inner side of the upturned portion of the end of the bottle body to the action 'ofa suitable creasing or groove-form- The upsetting of the paper to form the interlocking ribs and grooves not only results in the secure union produced by the interlocking members and liquid and dust tight joint between the bottom and the bottle body, but results in giving to the paper a set that overcomes any of the overlapping parts to return to their original position or spring open. The'creasing may be carried to an extent to affect all the overlapping portions of bottle as shown in Fig.3, or to a less extent, providing it is carried far enough to-produce such interlocking of the laps and set of the paper as to make a secure,

tight, and permanently fixed joint. As

shown in Fig. 3, the creasing affects all the plies or laps, and produces a rib or bead on the outside of the bottle, while in Figs. 1 and 2 the outside of the bottle is not affected but remains smooth. In some cases the creasing may be reversed, that is to say the creasing tool may be applied on the outside of the bottle, and the ribs pressed inward.

By my invention, I am able to produce an all paper bottle or receptacle with a strong, tight joint at the bottom, or other end closure, no metal or other'fastening being required.

The union of the bottom to the receptacle body that is produced in accordance with my invention, as thus far described, is entirely sufficient in the case of milk bottles or other receptacles, whose time of use is short, but it may be desirable insome instances where a comparatively longer use is tobe made of the receptacle to apply glue or other adhesive to the overlapping surfaces.

My invention is applicable to securing tops or closures, as well as bottoms to receptacles.

' The disk 11 may be flat or slightly dished and upward to overlap the bottom flange on produces a '10 doubled and overlapping with the convex side inward to" give greater strength or st-ifiness under the weight of the receptacle contents.

Having thus described my invention what Iclaimis, g

A bottle or other receptacle made of paper having an end with an outwardly extending flange confined between the outer wall of the receptacle, and an inwardly turned flange itself with its overlapping portions in contact, the body or 1nain portion of said end engaging the edge of said doubled flange" where it'is turned and situated inside the end flangeand sup orting saidend, overlapping parts of, end ange and inwardly turnedportion of the receptacle,being creased to form an interlocking rib and groove.

In testimony have hereunto set 111 GHARL Witnesses:

CHAS. J. WILLIAMSON,

J. RAYMOND HOOVER.

that I claim the foregoing I hand. 1 S MARTHINSON. 

